CTICasesDisplaced and Crumpled Aortic Stent
Imaging findings
Chest and abdominal CT demonstrate a bizarre, stippled, non-occlusive calcified/metallic structure occupying the lumen of the descending thoracic aorta. The patient had a history of an ilio-femoral bypass and aortic intervention, and the finding represents a crumpled, fractured, and retrogradely migrated aortic stent with secondary thrombosis/calcification.
Key takeaways
Endovascular stent grafts can rarely fracture, crumple, or migrate retrogradely or anterogradely, presenting as an intravascular mass-like lesion. Differentiating a displaced/fractured stent from an intravascular neoplasm (like an aortic sarcoma) is aided by recognizing the metallic wire matrix and reviewing the patient's procedural history.
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